CN104985320A - Friction-stir welding equipment - Google Patents

Friction-stir welding equipment Download PDF

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Publication number
CN104985320A
CN104985320A CN201510375127.6A CN201510375127A CN104985320A CN 104985320 A CN104985320 A CN 104985320A CN 201510375127 A CN201510375127 A CN 201510375127A CN 104985320 A CN104985320 A CN 104985320A
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CN
China
Prior art keywords
head
stirring
attaching parts
propulsive
slide
Prior art date
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Granted
Application number
CN201510375127.6A
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Chinese (zh)
Other versions
CN104985320B (en
Inventor
唐远金
陈康
李力
杜彦斌
黄木春
赵学渝
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Chongqing send special mechanical and Electrical Co., Ltd.
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唐远金
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Priority to CN201510375127.6A priority Critical patent/CN104985320B/en
Publication of CN104985320A publication Critical patent/CN104985320A/en
Application granted granted Critical
Publication of CN104985320B publication Critical patent/CN104985320B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/122Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
    • B23K20/1245Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding characterised by the apparatus

Abstract

The invention provides friction-stir welding equipment. The friction-stir welding equipment comprises a machine tool body for friction-stir welding. A stir head is installed on a spindle of the machine tool body. A floating supporting structure is arranged between the stir head and the spindle and comprises a connecting component and an elastic supporting piece. The connecting component is fixed to the spindle, the lower portion of the connecting component and the upper portion of the stir head are matched through a plurality of concave parts and convex parts, and the connecting component and the stir head can rotate synchronously. The elastic supporting piece is arranged between the lower end of the connecting component and the upper end of the stir head in an abutting mode. A limiting structure is arranged on the connecting component and used for preventing the stir head from disengaging from the lower end of the connecting component. The friction-stir welding equipment can keep pressure constant in welding and improve the quality of welded joints. When disturbance or other accidents occur, torsion or impact force on the stir head can be reduced, so that the stir head is easy to protect and not prone to fracture, and the service life of the stir head is prolonged. The structure of the spindle is simplified, so that the whole equipment has a light weight and a small size, materials are saved, and cost is lowered.

Description

A kind of agitating friction soldering equipment
Technical field
The present invention relates to friction stir welding apparatus field, particularly a kind of agitating friction soldering equipment.
Background technology
Friction stir welding is the patent of invention that Britain's institute of welding proposed in October, 1991.Friction stir welding is mainly used in the welding solving the low melting materials such as aluminium alloy at first.As the solid phase joining technique of a kind of advanced person, friction stir welding is widely used in the fields such as Aero-Space, track traffic, defence and military, steamer automobile.In friction stir welding process, stirring-head is used to insert the position to be welded of workpiece, by the agitating friction between stirring-head and workpiece, frictional heat makes this position metal be in hot plastic state and from its front end posteriorly Plastic Flow under the pressure effect of stirring-head, thus makes to treat that weldment is welded as a whole.
In the friction stir welding process of reality, the agitating friction soldering equipment of industrial employing adopts workbench motionless often, intermetallic welding is realized by the motion of the multiple directions such as X-axis, Y-axis of stirring-head, thus equipment volume is comparatively huge and heavy, cause device fabrication cost higher, significantly limit the application of agitating friction welding technology in civilian industry field, hinder all-round popularization and the large-scale application of agitating friction welding technology.In addition, when existing friction stir welding equipment runs, be all adopt rigid contact between mixing needle and mother metal, when there is the fortuitous events such as disturbance, mixing needle very easily ruptures, cause stirring-head to be scrapped, have a strong impact on the service life of stirring-head, and increase the production cost of enterprise.For this reason, in the urgent need to providing a kind of when there is the fortuitous events such as disturbance, the agitating friction soldering equipment that stirring-head bears torsion or impulsive force can be alleviated, effectively extend the service life of stirring-head, improve welding production efficiency, reduce enterprise's production cost.
Summary of the invention
The deficiencies in the prior art in view of the above, the object of the present invention is to provide a kind of agitating friction soldering equipment, and when there is the fortuitous events such as disturbance, protection stirring-head, alleviates torsion or impulsive force that stirring-head bears, extend its service life.
For achieving the above object and other relevant objects, the invention provides a kind of agitating friction soldering equipment, comprise the machine body for friction stir welding, the main shaft of machine body is provided with stirring-head, floating support structure is provided with between described stirring-head and main shaft, described floating support structure comprises attaching parts and elastic supporting member for supporting optical member, described attaching parts and main shaft are fixed, described attaching parts bottom is coordinated by multiple recess and protuberance with stirring-head top, and energy synchronous axial system, described elastic supporting member for supporting optical member withstands between attaching parts lower end and stirring-head upper end, and described attaching parts are provided with the position limiting structure preventing stirring-head from deviating from from attaching parts lower end.
Adopt said structure: on the one hand, pressure energy can be made during welding to keep constant, improve quality of weld joint; On the other hand, when there is the fortuitous events such as disturbance, floating support structure can alleviate the torsion or impulsive force that stirring-head bears, and easily protects stirring-head, makes its not easy fracture, extends stirring-head service life.
As preferably: described attaching parts are column, center, described attaching parts lower surface offers support member installing hole, described elastic supporting member for supporting optical member is positioned at this support member installing hole, the surrounding of described attaching parts lower surface upper supporting piece installing hole offers at least two locating holes, described stirring-head upper surface is provided with many locating dowels corresponding with locating hole, this locating dowel stretches in locating hole, makes attaching parts and stirring-head energy synchronous axial system.
As preferably: described locating dowel upper end is taper, and described locating hole edge has chamfering.
As preferably: described attaching parts lower end and stirring-head upper end are provided with the claw matched, and described elastic supporting member for supporting optical member is the one in spring, rubber, polyurethane.
As preferably: described position limiting structure comprises check lock lever, is located at the locking hole in attaching parts and is located at the bar shaped spacing hole on stirring-head, described check lock lever is deviate from from attaching parts through locking hole and bar shaped spacing hole restriction stirring-head, and described stirring-head realizes moving up and down relative to attaching parts by bar shaped spacing hole.
As preferably: described machine body comprises base, spindle bearing, left and right propulsive mechanism, front and back propulsive mechanism and workbench, described left and right propulsive mechanism is arranged on base, described front and back propulsive mechanism is arranged on the propulsive mechanism of left and right by the first slide mechanism, and described workbench is arranged on the propulsive mechanism of front and back by the second slide mechanism; Described spindle bearing is vertically provided with the first guide rail and upper and lower propulsive mechanism, first slide on rails is provided with the first supporting seat, this first supporting seat is connected with upper and lower propulsive mechanism, described first supporting seat is provided with electric rotating machine, described main shaft is connected with electric rotating machine output, and described stirring-head is positioned at above workbench.
Said structure, main shaft drives part only needs to rotate and move at vertical direction, and is realized the adjustment of welding position by the movement all around of workbench, thus makes the lightweight of machine spindle part, and device entirety realizes miniaturized.
As preferably: described front and back propulsive mechanism and left and right propulsive mechanism include motor and feed screw nut pair, screw mandrel is horizontally disposed with and is connected with motor, described first slide mechanism and the second slide mechanism include the slide rail and slide that match, slide rail and leading screw are arranged in parallel, and slide is connected with leading screw by nut.
As preferably: described upper and lower propulsive mechanism is cylinder or hydraulic cylinder, and the brace table that described workbench comprises rigidity and the hold-down mechanism be arranged on brace table, described supporting bable tops offers multiple installing hole, and described hold-down mechanism is arranged in installing hole.
As preferably: described stirring-head comprises the shaft shoulder, mixing needle and the stirring-head main body for being connected with attaching parts, described mixing needle is conical or cylindrical, and the irregular lines of genesis analysis on its side face, described mixing needle bottom surface is plane or curved surface.
As preferably: described mixing needle bottom surface be arranged in parallel and is provided with many lines, or arranged in a crossed mannerly there are many lines.
As mentioned above, the invention has the beneficial effects as follows: carry out compared with agitating friction weld with employing conventional rigid mixing needle, floating support structure on the one hand, can make pressure energy keep constant, raising quality of weld joint during welding; On the other hand, when there is the fortuitous events such as disturbance, floating support structure can alleviate the torsion or impulsive force that stirring-head bears, and easily protects stirring-head, makes its not easy fracture, extends stirring-head service life.Adopt the mode of left and right propulsive mechanism, front and back propulsive mechanism, change welding position by travelling table, simplify main axle structure, make the overall lightweight of device, miniaturization, save material and cost, promote all-round popularization and the large-scale application of agitating friction welding technology.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the plan view of workbench portion of the present invention;
Fig. 3 is the mounting structure schematic diagram on spindle bearing of the present invention;
Fig. 4 is the annexation schematic diagram of attaching parts of the present invention and stirring-head;
Fig. 5 is the sectional view of Fig. 4 other direction;
Fig. 6 is the upward view of attaching parts in the present invention;
Fig. 7 is the top view of stirring-head in the present invention;
Fig. 8 is the structural representation of stirring-head in the present invention;
Fig. 9 is the upward view of mixing needle wherein a kind of structure in the present invention.
Piece mark explanation
1 base
2 spindle bearings
About 3 propulsive mechanisms
31 hydraulic cylinders
32 first guide rails
33 first supporting seats
4 stirring-heads
41 stirring-head main bodys
42 shaft shoulders
43 mixing needles
44 attaching parts
45 support member installing holes
46 locating holes
47 locating dowels
48 bar shaped spacing holes
49 check lock levers
About 5 propulsive mechanisms
51 first motors
52 first screw mandrels
53 first slide rails
54 first slides
Propulsive mechanism before and after 6
61 second motors
62 second screw mandrels
63 second slide rails
64 first mount pads
65 second slides
7 workbench
71 installing holes
81 electric rotating machines
82 first gripper shoes
83 shaft couplings
84 second gripper shoes
85 main shafts
9 photoelectric limit switch devices
10 springs
Detailed description of the invention
By particular specific embodiment, working of an invention mode is described below, person skilled in the art scholar the content disclosed by this description can understand other advantages and effect of invention easily.
As shown in Figure 1 to Figure 3, the invention provides a kind of agitating friction soldering equipment, comprise the machine body for friction stir welding, the main shaft of machine body is provided with stirring-head, floating support structure is provided with between stirring-head and main shaft, floating support structure comprises attaching parts 44 and elastic supporting member for supporting optical member, attaching parts 44 and main shaft are fixed, attaching parts 44 bottom is coordinated by multiple recess and protuberance with stirring-head top, and energy synchronous axial system, elastic supporting member for supporting optical member withstands between attaching parts 44 lower end and stirring-head upper end, and attaching parts 44 are provided with the position limiting structure preventing stirring-head from deviating from from attaching parts 44 lower end, described stirring-head comprises the shaft shoulder, mixing needle and the stirring-head main body for being connected with attaching parts 44, in this example, machine body comprises base 1, spindle bearing 2, left and right propulsive mechanism 5, front and back propulsive mechanism 6 and workbench 7, left and right propulsive mechanism 5 is arranged on base 1, front and back propulsive mechanism 6 is arranged on left and right propulsive mechanism 5 by the first slide mechanism, workbench 7 is arranged on front and back propulsive mechanism 6 by the second slide mechanism, spindle bearing 2 is vertically provided with the first guide rail 32 and upper and lower propulsive mechanism 3, first guide rail 32 is slidably fitted with the first supporting seat 33, this first supporting seat 33 is connected with upper and lower propulsive mechanism 3, first supporting seat 33 is provided with electric rotating machine 81 and main shaft 85, electric rotating machine 81 and main shaft 85 are arranged on the first supporting seat 33 respectively by the first gripper shoe 82 and the second gripper shoe 84, electric rotating machine 81 is connected by shaft coupling 83 with main shaft 85, is provided with bearing between main shaft 85 and the second gripper shoe 84.Stirring-head 4 is positioned at above workbench 7.
Further as shown in Figures 4 to 7:
In this example, attaching parts 44 are cylindric, center, attaching parts 44 lower surface offers support member installing hole 45, elastic supporting member for supporting optical member is positioned at this support member installing hole 45, stirring-head main body upper end is provided with the boss of positioning elastic support member, the surrounding of attaching parts 44 lower surface upper supporting piece installing hole 45 offers 2-4 locating hole 46, stirring-head main body upper surface is provided with many locating dowels 47 corresponding with locating hole 46, this locating dowel 47 stretches in locating hole 46, makes attaching parts 44 and stirring-head energy synchronous axial system.Guiding during for the ease of connecting, locating dowel 47 upper end is taper, and locating hole 46 edge has chamfering.
Certainly, in other embodiments, transmission can be carried out by the claw matched in attaching parts 44 lower end and stirring-head main body upper end, is similar to the claw structure of shaft coupling.This routine Elastic support member is spring 10.Also can for other elastic constructions of larger load can be born.
Position limiting structure comprises check lock lever 49, is located at the locking hole in attaching parts 44 and is located at the bar shaped spacing hole 48 in stirring-head main body, check lock lever 49 limits stirring-head through locking hole and bar shaped spacing hole 48 and deviates from from attaching parts 44, and stirring-head realizes moving up and down relative to attaching parts 44 by bar shaped spacing hole 48.In the length of vertical direction, bar shaped spacing hole 48 will ensure that spring 10 is when compressing completely, non-contravention bottom projection upper end and support member installing hole 45.
Further as shown in Figure 2, left and right propulsive mechanism 5 comprises the first motor 51 and the first feed screw nut pair, first motor 51 is arranged on base 1 by the first motor 51 mount pad, first screw mandrel 52 is horizontally set on base 1, and be connected with the first motor 51, the first slide mechanism is made up of the first slide 54 and the first slide rail 53, and the first slide rail 53 and the first screw mandrel 52 are arranged on base 1 abreast, first slide 54 is erected on the first slide rail 53, the first slide 54 and the first leading screw 52 threaded engagement.Front and back propulsive mechanism 6 is arranged on the first mount pad 64, first mount pad 64 is fixed on the first slide 54, front and back propulsive mechanism 6 comprises the second motor 61 and the second feed screw nut pair, second motor 61 is arranged on the first mount pad 64 by the second motor mount, second screw mandrel 62 is horizontally set on the first mount pad 64, and be connected with the second motor 61, second slide mechanism is made up of the second slide 65 and the second slide rail 63, second slide rail 63 and the second screw mandrel 62 are arranged on the first mount pad 64 abreast, second slide 65 is erected on the second slide rail 63, second slide 65 and the second leading screw 62 threaded engagement, workbench 7 is arranged on the second slide 65.
In this example, upper and lower propulsive mechanism 3 comprises hydraulic cylinder 31 and is connected to the drive rod of hydraulic cylinder 31 lower end, and drive rod is connected with the first supporting seat 33, can also be cylinder or motor and screw mandrel combination etc. in other embodiments.The brace table that workbench 7 comprises rigidity and the hold-down mechanism be arranged on brace table, hold-down mechanism can be the combination etc. of bolt one pressing plate, and supporting bable tops offers multiple threaded mounting hole 71, hold-down mechanism is arranged in installing hole 71.Before welding, welded piece is placed on rigid support platform, and with hold down gag, it is clamped, to realize rigidly fixing of welded piece.Workbench 7 is arranged multiple equally distributed screwed hole, be convenient to select suitable mode and position to fix welded piece.
Described first slide rail 53, second slide rail 63 and the first guide rail 32 are provided with photoelectric limit switch device 9; Photoelectric limit switch device 9 installs slide unit by limit switch and photoelectric limit switch forms, and photoelectric limit switch device 9 is arranged on the either side of the first slide rail 53, second slide rail 63 and the first guide rail 32; When slide block exceeds spacing, the light path between optoelectronic switch transmitter and receiver is cut off, and sends the signal that transfinites, thus ensures agitating friction welder reliably working.Electric rotating machine 81, first motor 51, second motor 61 in this example all adopts servomotor, is convenient to control, and precision is high, certainly also comprises control system etc., is connected controls with each servomotor.The planer type structure that in other embodiments, machine body also can be conventional, namely main shaft does Z, Y-direction motion, and workbench is X to motion.
As shown in Fig. 5, Fig. 8, Fig. 9, mixing needle is conical or cylindrical, the irregular lines of genesis analysis on its side face, described mixing needle bottom surface is plane or curved surface, mixing needle bottom surface be arranged in parallel and is provided with many lines, or arranged in a crossed mannerly having many lines, lines is wherein made up of groove or raised line, to increase the frictional force of mixing needle.
Floating support structure of the present invention on the one hand, can make pressure energy keep constant, improve quality of weld joint during welding; On the other hand, when there is the fortuitous events such as disturbance, floating support structure can alleviate the torsion or impulsive force that stirring-head bears, and easily protects stirring-head, makes its not easy fracture, extends stirring-head service life.Main shaft drives part only needs to rotate and move at vertical direction, and is realized the adjustment of welding position by the movement all around of workbench, thus makes machine spindle part-structure simpler, and lightweight, device entirety realizes miniaturized.
Any person skilled in the art scholar all under the spirit and category of invention, can modify above-described embodiment or changes.Therefore, such as have in art and usually know that the knowledgeable modifies or changes not departing from all equivalences completed under the spirit and technological thought that invention discloses, must be contained by the claim of inventing.

Claims (10)

1. an agitating friction soldering equipment, comprise the machine body for friction stir welding, the main shaft of machine body is provided with stirring-head, it is characterized in that: between described stirring-head and main shaft, be provided with floating support structure, described floating support structure comprises attaching parts and elastic supporting member for supporting optical member, described attaching parts and main shaft are fixed, described attaching parts bottom is coordinated by multiple recess and protuberance with stirring-head top, and energy synchronous axial system, described elastic supporting member for supporting optical member withstands between attaching parts lower end and stirring-head upper end, and described attaching parts are provided with the position limiting structure preventing stirring-head from deviating from from attaching parts lower end.
2. a kind of agitating friction soldering equipment according to claim 1, it is characterized in that: described attaching parts are column, center, described attaching parts lower surface offers support member installing hole, described elastic supporting member for supporting optical member is positioned at this support member installing hole, the surrounding of described attaching parts lower surface upper supporting piece installing hole offers at least two locating holes, described stirring-head upper surface is provided with many locating dowels corresponding with locating hole, this locating dowel stretches in locating hole, makes attaching parts and stirring-head energy synchronous axial system.
3. a kind of agitating friction soldering equipment according to claim 2, it is characterized in that: described locating dowel upper end is taper, described locating hole edge has chamfering.
4. a kind of agitating friction soldering equipment according to claim 1, it is characterized in that: described attaching parts lower end and stirring-head upper end are provided with the claw matched, described elastic supporting member for supporting optical member is spring.
5. a kind of agitating friction soldering equipment according to claim 1, it is characterized in that: described position limiting structure comprises check lock lever, is located at the locking hole in attaching parts and is located at the bar shaped spacing hole on stirring-head, described check lock lever is deviate from from attaching parts through locking hole and bar shaped spacing hole restriction stirring-head, and described stirring-head realizes moving up and down relative to attaching parts by bar shaped spacing hole.
6. a kind of agitating friction soldering equipment according to claim 1, it is characterized in that: described machine body comprises base, spindle bearing, left and right propulsive mechanism, front and back propulsive mechanism and workbench, described left and right propulsive mechanism is arranged on base, described front and back propulsive mechanism is arranged on the propulsive mechanism of left and right by the first slide mechanism, and described workbench is arranged on the propulsive mechanism of front and back by the second slide mechanism; Described spindle bearing is vertically provided with the first guide rail and upper and lower propulsive mechanism, first slide on rails is provided with the first supporting seat, this first supporting seat is connected with upper and lower propulsive mechanism, described first supporting seat is provided with electric rotating machine, described main shaft is connected with electric rotating machine output, and described stirring-head is positioned at above workbench.
7. a kind of agitating friction soldering equipment according to claim 6, it is characterized in that: described front and back propulsive mechanism and left and right propulsive mechanism include motor and feed screw nut pair, screw mandrel is horizontally disposed with and is connected with motor, described first slide mechanism and the second slide mechanism include the slide rail and slide that match, slide rail and leading screw are arranged in parallel, and slide is connected with leading screw by nut.
8. a kind of agitating friction soldering equipment according to claim 6, it is characterized in that: described upper and lower propulsive mechanism is cylinder or hydraulic cylinder, the brace table that described workbench comprises rigidity and the hold-down mechanism be arranged on brace table, described supporting bable tops offers multiple installing hole, and described hold-down mechanism is arranged in installing hole.
9. a kind of agitating friction soldering equipment according to claim 1, it is characterized in that: described stirring-head comprises the shaft shoulder, mixing needle and the stirring-head main body for being connected with attaching parts, described mixing needle is conical or cylindrical, the irregular lines of genesis analysis on its side face, described mixing needle bottom surface is plane or curved surface.
10. a kind of agitating friction soldering equipment according to claim 9, is characterized in that: described mixing needle bottom surface be arranged in parallel and is provided with many lines, or arranged in a crossed mannerly has many lines.
CN201510375127.6A 2015-06-23 2015-06-23 Friction-stir welding equipment Active CN104985320B (en)

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Cited By (13)

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CN106141417A (en) * 2016-08-06 2016-11-23 姜海 Steel pipe agitating friction soldering set and welding method
CN106141418A (en) * 2016-08-06 2016-11-23 姜海 The flexible steel pipe agitating friction soldering set started and welding method
CN106141420A (en) * 2016-08-06 2016-11-23 姜海 Agitating friction soldering set based on pressure feedback and welding method
CN106141419A (en) * 2016-08-06 2016-11-23 姜海 Agitating friction soldering set and welding method
CN106181019A (en) * 2016-08-06 2016-12-07 姜海 The flexible steel pipe agitating friction soldering set started based on pressure feedback and welding method
CN106238899A (en) * 2016-08-06 2016-12-21 姜海 Steel pipe agitating friction soldering set based on pressure feedback and welding method
CN106238900A (en) * 2016-08-06 2016-12-21 姜海 The flexible agitating friction soldering set started and welding method
CN106271024A (en) * 2016-08-06 2017-01-04 姜海 Steel pipe agitating friction soldering set based on pressure feedback and welding method
CN107175401A (en) * 2017-05-17 2017-09-19 北京世佳博科技发展有限公司 Improve the flexible friction stir welding tool and welding method of production efficiency
CN108971744A (en) * 2018-10-16 2018-12-11 江苏科技大学 A kind of adaptive friction stir welding method of noise-reduction type axial compressive force and device
CN110193657A (en) * 2019-05-06 2019-09-03 上海发那科机器人有限公司 A kind of two-freedom friction welding (FW) mainshaft mechanism suitable for industrial robot
CN110434452A (en) * 2019-07-17 2019-11-12 南京中车浦镇城轨车辆有限责任公司 A kind of adaptive stirring tool and welding method of the welding of multilayer hollow profile
CN110860783A (en) * 2019-11-25 2020-03-06 上海航天设备制造总厂有限公司 Device for improving axial bearing capacity of main shaft of friction stir welding equipment

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Cited By (14)

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Publication number Priority date Publication date Assignee Title
CN106271024A (en) * 2016-08-06 2017-01-04 姜海 Steel pipe agitating friction soldering set based on pressure feedback and welding method
CN106141418A (en) * 2016-08-06 2016-11-23 姜海 The flexible steel pipe agitating friction soldering set started and welding method
CN106141420A (en) * 2016-08-06 2016-11-23 姜海 Agitating friction soldering set based on pressure feedback and welding method
CN106141419A (en) * 2016-08-06 2016-11-23 姜海 Agitating friction soldering set and welding method
CN106181019A (en) * 2016-08-06 2016-12-07 姜海 The flexible steel pipe agitating friction soldering set started based on pressure feedback and welding method
CN106238899A (en) * 2016-08-06 2016-12-21 姜海 Steel pipe agitating friction soldering set based on pressure feedback and welding method
CN106238900A (en) * 2016-08-06 2016-12-21 姜海 The flexible agitating friction soldering set started and welding method
CN106141417A (en) * 2016-08-06 2016-11-23 姜海 Steel pipe agitating friction soldering set and welding method
CN107175401A (en) * 2017-05-17 2017-09-19 北京世佳博科技发展有限公司 Improve the flexible friction stir welding tool and welding method of production efficiency
CN108971744A (en) * 2018-10-16 2018-12-11 江苏科技大学 A kind of adaptive friction stir welding method of noise-reduction type axial compressive force and device
CN110193657A (en) * 2019-05-06 2019-09-03 上海发那科机器人有限公司 A kind of two-freedom friction welding (FW) mainshaft mechanism suitable for industrial robot
CN110434452A (en) * 2019-07-17 2019-11-12 南京中车浦镇城轨车辆有限责任公司 A kind of adaptive stirring tool and welding method of the welding of multilayer hollow profile
CN110434452B (en) * 2019-07-17 2021-06-01 南京中车浦镇城轨车辆有限责任公司 Self-adaptive stirring tool for welding multilayer hollow section and welding method
CN110860783A (en) * 2019-11-25 2020-03-06 上海航天设备制造总厂有限公司 Device for improving axial bearing capacity of main shaft of friction stir welding equipment

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